80239775

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{571}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 125968128

約数和(自身を除く): 45728353

約数列:

[1, 5, 7, 11, 25, 35, 55, 73, 77, 175, 275, 365, 385, 511, 571, 803, 1825, 1925, 2555, 2855, 3997, 4015, 5621, 6281, 12775, 14275, 19985, 20075, 28105, 31405, 41683, 43967, 99925, 140525, 157025, 208415, 219835, 291781, 458513, 1042075, 1099175, 1458905, 2292565, 3209591, 7294525, 11462825, 16047955, 80239775]

約数ペア:

[(1, 80239775), (5, 16047955), (7, 11462825), (11, 7294525), (25, 3209591), (35, 2292565), (55, 1458905), (73, 1099175), (77, 1042075), (175, 458513), (275, 291781), (365, 219835), (385, 208415), (511, 157025), (571, 140525), (803, 99925), (1825, 43967), (1925, 41683), (2555, 31405), (2855, 28105), (3997, 20075), (4015, 19985), (5621, 14275), (6281, 12775)]